Sigma (Mathematics Support)

In mathematics, "Sigma" (represented by the Greek letter Σ) is used as a symbol to denote the sum of a series of numbers or expressions. It provides a compact way to add a sequence of values, often specified by a pattern or rule. For example, Σ from i=1 to 4 of i means 1 + 2 + 3 + 4. Think of it as a shorthand notation that allows you to efficiently express and compute totals of a list of related items, especially when dealing with repetitive addition.